Washer for glass gages, &amp;c.



- W] T NESSE E. L. PERRY, JR. WASHER FOR GLASS GAGES, 6w. APPLIOATIOH FILED MAR. 11, 1912.

- 1,038,642 Patented Sept. 17,1912.

46. section.

PATENT @FFIE.

EDWARD L. PERRY, 3., OF PATERSON, NEW JERSEY.

WASHER FOB GLASS GAGES, 8w.

Specification of Letters Patent. Patented Sept. 17, 1912.

Application filed March 11, 1912.

Serial No. 683,179.

To all whom it may concern I Be it known that I, EDWARD L. PnnnY, J r., a citizen of the United States, residing at Paterson, in the county of Passaic and State of New Jersey, have invented certain new and useful Improvements in \Vashers for Glass Gages, &c., and do hereby declare that the following is a full, clear, and exact description of the same, reference being had to 10 the annexed drawings, making a part of this specification, and to the letters and figures of reference marked thereon.

, My invention relates to packing rings of the character covered by United States Patent No. 631,661, August 21, 1899, to Edward L. Perry, Jr. in which the pressure Within the members having joints to be packed, is utilized to expand the packing and thus make and maintain a tight joint. It has -been discovered that byreason' of the increased pressure and the high temperature of steam, the use of which has become commonsince the issuance of the before mentioned patent, that the washer having the construction illustrated therein does not satisfactorily meet the requirements of these new conditions of high pressure and high temperature, and the object of my inyention is to so improve the construction of washers of this de cription as to enable them to act '35 claimed.

1 Referring to the accompanying drawingsFigure l is a perspective view of a washer embodying niy invention; Fig. 2 a top plan view thereof; and Fig. 3 a cross In its preferred form, my packin is in the formof a ring or washer 10, prefie of rubber, but the form and material may be varied withoutdeparture, from my in- .vention, and having parallel outer andinnen sides with one end flat and the other inclined and having a circumferential channel .or chamber extending inwardly and outwardly from the corner formed by the inner circumference andthe outwardly inclined end,

' all as'in the case of the packing or washer of Patent No. 631,661. In the use of thispacking, as is clearly set forth in Patent No. 631,661, thesteam or other fluid under pres rably sure entering the annular expansion chamber 11, forces the two annular portions of the packing or washer at the sides of the said chamber outward and inward, respectively,

and thereby a tight joint is produced and maintained. In the annular expansion chamber 11 at intervals, are narrow partitions 12 integral with the opposite walls of the chamher, which by connecting said opposite walls together impart such strength that even the extremely high pressures and high temperatures commonly used, will "prevent the def ormation and deterioration which are likely to occur when the construction illustrated in said Patent No. 631,661 is employed.

It is to be understood that I do not limit the use of my packing to any articular re-' lation, nor do I restrict myseiif to particulars of form, construction and material unless the claims so require.

Having thus described my invention what I claim is- 1. A packing composed ,of expansible ma terial, having a pressure-receiving chamber extending into the packing body from the exterior thereof at an angle to the jointforming wall of the packing and providing lips at opposite sides, and connecting members between the walls of said chamber,

spaced apart therein.

2. A packing composed of a ring of expansible material, said ring having an annular expansion chamber inclined from the edge of its inner wall, and a series of 1ntegral partitions spaced apart in said chamber and connecting the opposite walls thereof.

3. An elastic packing for gage-glasses, said packing consisting of a ring of elastic -material having parallel outer and inner sides and one end flat and the otheroutwardly inclined 'E- g. ,'a nd having a circumferential expansio -hamber. extending from "the meeting edg f saidinner side and inclined end, and tat an inclination to both,

andintegral partitions bridging said chaltnher at intervals, and connecting the opposi walls thereof. v In testimony whereof I affix my signa in presence of two witnesses. v I V EDWARDVL. PERRY, Jiz.

- Witnesses; CHARLES. I51 E. MASTIN, GEoRcnWINrERs. 1 

